Average Bench: 118% (164th of 1037)

Based on 9,525 user benchmarks.  Models: NVMe PM951 NVMe SAMSU, PM951 NVMe SAMSUNG 256GB

Outstanding average bench

The Samsung PM951 NVMe PCIe M.2 256GB averaged 18.2% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the Samsung PM951 NVMe PCIe M.2 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Mixed IO Speed 344MB/s
Avg. 4K-64Thread Read Speed 806MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Samsung PM951 NVMe PCIe M.2 256GB is 72.6%. This is a particularly wide range which indicates that the Samsung PM951 NVMe PCIe M.2 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sustained Write Speed 217MB/s
Avg. Sequential Write Speed 254MB/s
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Average Bench

(Based on 9,525 samples)
Min Avg Max
565 Read 901 1,042
105 Write 254 307
146 Mixed 278 344
65.3 SusWrite 217 298
90.1% 412 MB/s
Min Avg Max
17.7 4K Read 38.2 42
37.3 4K Write 108 156
14.7 4K Mixed 30.8 40
155% 59.2 MB/s
Min Avg Max
218 DQ Read 806 988
102 DQ Write 253 312
131 DQ Mixed 344 421
302% 468 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
209GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 291 289 285 289 292 290 MB/s
Read 879
Write 296
Mixed 301
SusWrite 290
97% 441 MB/s
4K Read 37.4
4K Write 115
4K Mixed 36.5
164% 62.9 MB/s
DQ Read 932
DQ Write 306
DQ Mixed 406
356% 548 MB/s
113GB free
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 299 297 294 296 296 296 MB/s
Read 724
Write 303
Mixed 322
SusWrite 296
91% 411 MB/s
4K Read 42.6
4K Write 130
4K Mixed 39.8
184% 70.9 MB/s
DQ Read 779
DQ Write 308
DQ Mixed 426
346% 504 MB/s
17GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 148 122 106 97 92 86 MB/s
Read 822
Write 185
Mixed 250
SusWrite 108
74% 341 MB/s
4K Read 30.9
4K Write 138
4K Mixed 30.5
159% 66.4 MB/s
DQ Read 921
DQ Write 206
DQ Mixed 309
293% 479 MB/s
195GB free (System drive)
Firmware: BXV77D0Q Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 295 293 296 294 294 293 MB/s
Read 695
Write 300
Mixed 255
SusWrite 294
85% 386 MB/s
4K Read 22.3
4K Write 87.2
4K Mixed 28.4
116% 46 MB/s
DQ Read 743
DQ Write 302
DQ Mixed 408
332% 484 MB/s
64GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 200 296 295 296 296 297 MB/s
Read 874
Write 305
Mixed 328
SusWrite 280
98% 447 MB/s
4K Read 31.5
4K Write 120
4K Mixed 32.8
154% 61.6 MB/s
DQ Read 40
DQ Write 198
DQ Mixed 39.8
54% 92.5 MB/s
146GB free (System drive)
Firmware: BXV7 Max speed: PCIe 5,000 MB/s
SusWrite @10s intervals: 212 293 300 284 286 296 MB/s
Read 806
Write 196
Mixed 255
SusWrite 278
84% 384 MB/s
4K Read 31.7
4K Write 67.7
4K Mixed 30.1
122% 43.2 MB/s
DQ Read 350
DQ Write 243
DQ Mixed 315
230% 303 MB/s
9,525 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 31,610,326 SSDs tested.

Typical PM951 NVMe PCIe M.2 256GB Builds (Compare 775 builds) See popular component choices, score breakdowns and rankings.
Gaming
Gaming 11%
Tree trunk
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 10%
Tree trunk

System: Alienware 15 R2

EDIT WITH CUSTOM PC BUILDER

Popular PM951 NVMe PCIe M.2 256GB systems:

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Solid State Drive Rankings (Price vs Performance) September 2020 SSD Rankings.

Welcome to our 2.5" and M.2 SSD comparison. We calculate effective speed for both SATA and NVMe drives based on real world performance then adjust by current prices per GB to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top SSDs. [SSDrivePro]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.

 Comments

Added n/a ago.

Excellent

3 years ago.

Fast as heck...at half speed I might add!


Your
opinion?
1037 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i5-9600K $195Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $45
Intel Core i5-9400F $140Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $289Nvidia RTX 2070S (Super) $505Samsung 860 Evo 250GB $43
HDDRAMUSB
Seagate Barracuda 1TB (2016) $35Corsair Vengeance LPX DDR4 3200 C16 2x8GB $69SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 32GB $30
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Extreme 16GB $28
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